Superior 4" Outside Air Kit for BRT40ST See-Through Gas Fireplace btu56175 Uses the component shelf that

Uses the component shelf that is the perfect solution for TV components

MCS-814 Outer Liner(6 ea

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This set will bring the beauty of nature to life within your fireplace

Superior 4" Outside Air Kit for BRT40ST See-Through Gas Fireplace btu56175 Uses the component shelf thatWhat's Included Outside Air Kit Features For use if outside combustion air is required or desired. Must be used in conjunction with locally purchased, non combustible Class 1 or Class 0 flexible duct. For use with Superior BRT40ST B Vent See Through Gas Fireplace Specifications Model Number FOAK 4LD Catalog Number 81L88 Diameter Size 4" Compatible Fireplace BRT40ST